Respirating implement bag



Feb. 3-, 1931. QTAMPE 1 1,791,229

RESPIRA'IING IMPLEMENT BAG Filed Oct. 2, 1.928

v Fig.1.

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Irwerafor: G.EEHS@wmpe Patented Feb, 3, 1931 tartan sra'rss Gil-BEARD KARL EMIL HEINRICH STAMPE, F LUBECK, GERlHLANY RESPiIRATING IMPLEMENT BAG Application filed October 2, 192'8, Seria1 No.

The present invention relates to improvements in wrappers for the filling material of gas protecting and breathing cartridges.

' For protecting the breathing organs in 5 rooms, the contents of which comprise but a small percentage of noxious gases of not very poisonous character, frequently light gas protecting implements are used instead of the heavy and comparatively expensive gas masks having a metallic filter-cartridge. Such implements were constructed originally only for the protection-against dust, and contained for this purpose as air filtering means a layer or pad of cotton-wool or similar material generally disposed in a cylindrical chamber or container. In order to adapt such chamber for other filtering means serving as a protective means against poisonous gases, special arrangements will be necessary, for example perforated sheetmetal cans or tins, which receive the filtering material and are to be placed into the said cylindrical chambers. Devices of this kind, however, materially increase the costs of the filter implement.

The'most simple and cheapest way for accommodating the filling mass of air-filters in a special wrapper would be to make use of a small bag or pouch of textile fabrics. Since,-

. however, the filling mass, as a rule, has a granular form or comprises small lumps, such a small bag would'have the drawback that its shape will easily be submitted to changes. Therefore it cannot be warranted, that such a bag will at all times entirely fill up the cross-sectional area of the air passage through the cartridge casing, and particularly after lengthy use will retain such shape as it will require for answering its purpose. v By stifiening various places or portions of 44) such bags, the retention of the desired shape of the bag will be assured and the present invention relates to the manufacture of such textile bags, and more particularly to the manner of stiffening ,or solidifying them'in 45 the desired places by applying a substance adapted to become stifi, or by impregnating the desired places with a solution of such a substance. The price of the bags will not be materially increased by such procedure, hilst the above mentioned drawback of the 309,859, and in Germany October 11, 192?.

possibility of being easily deformed is obviated. According to the invention each bag bag may consist, for example, of. a hose-like part and a bottom-part or disk provided with an upright rim or flange. By gluing together the lower end of the hose-part and the said flange of the bottom-part there is accomplished'at this zone of gluing a circular stiffening ring which fits snugly, for example, into the cylindrical inner wall of the cartridge casing thereby avoiding detrimental leakages between the bag and the casing. As flexible porous material for the said small bags, an artificial silk-tissue may be chosen preferably, and as a glue and stiffening means, collodion or a similar solution are found to be well adapted. The gluing together of artificial silk by means of collodion or a similar solution will be equivalent to a. welding operation in that the separatethreadsare superficially dissolved by the dissolving means of the glue and the binding means of this glue consists of the same material as the fibre itself. Owing to the equality'of these materials, sewing stitches, if any, in the bags may-be easily closed mechanically by lacquering them with nitrocellulose or a cellon-lac. A special advantage of the manufacture of the small bags of artificial silk consists furthermore in that the latter, owing to the smooth surface of the texile fibres, exerts only a very slight absorbing power upon the gases passing through them during the breathing operation and also upon the liquids with which the filter-devices are impregnated. The said bags may also easily be washed and cleansed.

The inventive idea upon which the invention 'is based, may be carried into practice in every suitable manner.

In the drawing is shown as an example an embodiment of the invention.

According to Fig. 1 the bag is to be composed of a hose-like part 1 and a bottom part or disk2 having an upright rim or flange 3. The latter and the lower end of the part 1 are glued together in order .to form after their union a small bag or pouch the zone of connection or gluing of which forms a shaping and stifi'ening .ring. After filling the filtering material into the bag the upper opening of thesame is closed. This may be efiected either according to Fig. 2 by lacing tightly the upper end of the bag by means of a sack-string 5, or according to Fig. 3 by gluing a patch of fabric 6 over the upper opening of the bag, as shown.

I claim 1. The combination of a charge of filling material of the type employed in gas protecting and breathing cartridges, and a wrapper of porous textile fabric surrounding said filling material, said wrapper having stiffened portions,the stifiened portions being adapted to sustain the general shape of the package formed by the filling material and wrapper.

2. A structure as defined in claim 1, wherein the wrapper comprises a plurality of parts, and adhesive material connecting said parts,' the joints formed at said connection constituting the stiffening.

3. The combinatlon of a charge of filling material of the type employed in gas protectlng and breathing cartr1dges, a wrapper of porous textile fabric comprising a plurality of parts surrounding said filling material, and collodion connecting said parts.

4. A structure as defined in claim 1 wherein the Wrapper comprises, an upper portion constituting side walls and a top, a lower portion comprising a base provided with an upright flange engaging the side Walls of the upper portion, and, adhesive material connecting the upright flange with the side Walls of the upper portion.-

lln testimony. whereof I have signed my name to this specification.

GIERHARD KARL lEMll. l-lllilhlRlCHI STAIVMPE. 

